How to disable simultaneous touch

Hello!
I’ve got several widgets with DragAndDrop and Touch logics in them, everything works fine, but with simultaneous touch you can drag 2 widgets in one time, which should not be allowed in my game. I’ve tried to disable widgets and touch events after first touch, but as I can understand from printing logs - second touch fires before any of disable nodes executed.
Maybe there is some easy ways like to forbid using second finger at all or am I doing everything wrong?
Anyway - thanks in advance!

upd: It turned out that ‘Enable Touch Events’ flag in Player Controller doesn’t disables touch, but only Touch Events.